#!/bin/bash
#
# chkconfig: - 95 15
# description: Tomcat start/stop/status script
  
JAVA_HOME=/usr/local/jdk1.8
CATALINA_HOME=/usr/local/tomcat
TOMCAT_USAGE="Usage: $0 {\e[00;32mstart\e[00m|\e[00;31mstop\e[00m|\e[00;32mstatus\e[00m|\e[00;31mrestart\e[00m}"

#SHUTDOWN_WAIT is wait time in seconds for java proccess to stop
SHUTDOWN_WAIT=20

tomcat_pid() {
    echo `ps -ef | grep $CATALINA_HOME | grep -v grep | tr -s " "|cut -d" " -f2`
}

start() {
    pid=$(tomcat_pid)
    if [ -n "$pid" ];then
        echo -e "\e[00;31mTomcat is already running (pid: $pid)\e[00m"
    else
        echo -e "\e[00;32mStarting tomcat\e[00m"
        $CATALINA_HOME/bin/startup.sh
    fi
    return 0
}

status(){
    pid=$(tomcat_pid)
    if [ -n "$pid" ];then
        echo -e "\e[00;32mTomcat is running with pid: $pid\e[00
m"
    else
        echo -e "\e[00;31mTomcat is not running\e[00m"
    fi
}

stop() {
    pid=$(tomcat_pid)
    if [ -n "$pid" ];then
        echo -e "\e[00;31mStoping Tomcat\e[00m"
        $CATALINA_HOME/bin/shutdown.sh

        let kwait=$SHUTDOWN_WAIT
        count=0;
        until [ `ps -p $pid | grep -c $pid` = '0' ] || [ $count
 -gt $kwait ]
        do
            echo -n -e "\e[00;31mwaiting for processes to exit\
e[00m\n";
            sleep 1
            let count=$count+1;
        done

        if [ $count -gt $kwait ];then
            echo -n -e "\n\e[00;31mkilling processes which didn
't stop after $SHUTDOWN_WAIT seconds\e[00m"
            kill -9 $pid
        fi
    else
        echo -e "\e[00;31mTomcat is not running\e[00m"
    fi
    return 0
}

case $1 in
    start)
        start
    ;;

    stop)
        stop
    ;;

    restart)
        stop
        start
    ;;
 
    status)
        status
    ;;

    *)
        echo -e $TOMCAT_USAGE
    ;;
esac
exit 0